662462115840 has 1040 divisors, whose sum is σ = 2748786891840. Its totient is φ = 149484994560.

The previous prime is 662462115827. The next prime is 662462115841. The reversal of 662462115840 is 48511264266.

It is a happy number.

662462115840 is a `hidden beast` number, since 6 + 6 + 2 + 4 + 62 + 1 + 1 + 584 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662462115841) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1033481920 + ... + 1033482560.

Almost surely, 2^662462115840 is an apocalyptic number.

662462115840 is a gapful number since it is divisible by the number (60) 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 662462115840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1374393445920).

662462115840 is an abundant number, since it is smaller than the sum of its proper divisors (2086324776000).

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

662462115840 is an equidigital number, since it uses as much as digits as its factorization.

662462115840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 662462115840 in words is "six hundred sixty-two billion, four hundred sixty-two million, one hundred fifteen thousand, eight hundred forty".