1262410663220 has 384 divisors, whose sum is σ = 3402827366400. Its totient is φ = 383768985600.

The previous prime is 1262410663211. The next prime is 1262410663229. The reversal of 1262410663220 is 223660142621.

It is an interprime number because it is at equal distance from previous prime (1262410663211) and next prime (1262410663229).

It is a super-2 number, since 2×1262410663220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1262410663229) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 379214516 + ... + 379217844.

It is an arithmetic number, because the mean of its divisors is an integer number (8861529600).

Almost surely, 2^{1262410663220} is an apocalyptic number.

1262410663220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1262410663220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701413683200).

1262410663220 is an abundant number, since it is smaller than the sum of its proper divisors (2140416703180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1262410663220 is a wasteful number, since it uses less digits than its factorization.

1262410663220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559 (or 3557 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 1262410663220 in words is "one trillion, two hundred sixty-two billion, four hundred ten million, six hundred sixty-three thousand, two hundred twenty".