23561155002 has 64 divisors (see below), whose sum is σ = 59948928000. Its totient is φ = 6119774640.

The previous prime is 23561154979. The next prime is 23561155003. The reversal of 23561155002 is 20055116532.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23561155003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 497752 + ... + 543027.

It is an arithmetic number, because the mean of its divisors is an integer number (936702000).

Almost surely, 2^23561155002 is an apocalyptic number.

23561155002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23561155002 is an abundant number, since it is smaller than the sum of its proper divisors (36387772998).

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

23561155002 is a wasteful number, since it uses less digits than its factorization.

23561155002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040816 (or 1040802 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 23561155002 in words is "twenty-three billion, five hundred sixty-one million, one hundred fifty-five thousand, two".