16157521106 has 16 divisors (see below), whose sum is σ = 25664845464. Its totient is φ = 7602680064.

The previous prime is 16157521103. The next prime is 16157521139. The reversal of 16157521106 is 60112575161.

It can be written as a sum of positive squares in 4 ways, for example, as 14175045481 + 1982475625 = 119059^2 + 44525^2 .

It is a super-2 number, since 2×16157521106² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16157521103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358616 + ... + 401148.

Almost surely, 2^16157521106 is an apocalyptic number.

16157521106 is a deficient number, since it is larger than the sum of its proper divisors (9507324358).

16157521106 is a wasteful number, since it uses less digits than its factorization.

16157521106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53725.

The product of its (nonzero) digits is 12600, while the sum is 35.

The spelling of 16157521106 in words is "sixteen billion, one hundred fifty-seven million, five hundred twenty-one thousand, one hundred six".