1015611563164 has 48 divisors (see below), whose sum is σ = 1957308312960. Its totient is φ = 457258746560.

The previous prime is 1015611563077. The next prime is 1015611563189. The reversal of 1015611563164 is 4613651165101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44417967 + ... + 44440825.

It is an arithmetic number, because the mean of its divisors is an integer number (40777256520).

Almost surely, 2^{1015611563164} is an apocalyptic number.

It is an amenable number.

1015611563164 is a deficient number, since it is larger than the sum of its proper divisors (941696749796).

1015611563164 is a wasteful number, since it uses less digits than its factorization.

1015611563164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32418 (or 32416 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 1015611563164 in words is "one trillion, fifteen billion, six hundred eleven million, five hundred sixty-three thousand, one hundred sixty-four".