155116609952 has 24 divisors (see below), whose sum is σ = 305448955812. Its totient is φ = 77542272000.

The previous prime is 155116609931. The next prime is 155116609969. The reversal of 155116609952 is 259906611551.

It can be written as a sum of positive squares in 2 ways, for example, as 153504105616 + 1612504336 = 391796^2 + 40156^2 .

It is a super-2 number, since 2×155116609952² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155116609952.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343049 + ... + 654152.

Almost surely, 2^155116609952 is an apocalyptic number.

It is an amenable number.

155116609952 is a deficient number, since it is larger than the sum of its proper divisors (150332345860).

155116609952 is an equidigital number, since it uses as much as digits as its factorization.

155116609952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002072 (or 1002064 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 50.

The spelling of 155116609952 in words is "one hundred fifty-five billion, one hundred sixteen million, six hundred nine thousand, nine hundred fifty-two".