2623255721020 has 192 divisors, whose sum is σ = 6722282327040. Its totient is φ = 847469260800.

The previous prime is 2623255721011. The next prime is 2623255721029. The reversal of 2623255721020 is 201275523262.

It is an interprime number because it is at equal distance from previous prime (2623255721011) and next prime (2623255721029).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2623255721029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19616985 + ... + 19750255.

It is an arithmetic number, because the mean of its divisors is an integer number (35011887120).

Almost surely, 2^{2623255721020} is an apocalyptic number.

2623255721020 is a gapful number since it is divisible by the number (20) 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 2623255721020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3361141163520).

2623255721020 is an abundant number, since it is smaller than the sum of its proper divisors (4099026606020).

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

2623255721020 is a wasteful number, since it uses less digits than its factorization.

2623255721020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133604 (or 133602 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 2623255721020 in words is "two trillion, six hundred twenty-three billion, two hundred fifty-five million, seven hundred twenty-one thousand, twenty".