15478052164 has 6 divisors (see below), whose sum is σ = 27086591294. Its totient is φ = 7739026080.

The previous prime is 15478052131. The next prime is 15478052167. The reversal of 15478052164 is 46125087451.

It can be written as a sum of positive squares in only one way, i.e., 11050214400 + 4427837764 = 105120^2 + 66542^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15478052164.

It is not an unprimeable number, because it can be changed into a prime (15478052167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934756517 + ... + 1934756524.

Almost surely, 2^15478052164 is an apocalyptic number.

It is an amenable number.

15478052164 is a deficient number, since it is larger than the sum of its proper divisors (11608539130).

15478052164 is a wasteful number, since it uses less digits than its factorization.

15478052164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869513045 (or 3869513043 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 15478052164 in words is "fifteen billion, four hundred seventy-eight million, fifty-two thousand, one hundred sixty-four".