16157623450 has 24 divisors (see below), whose sum is σ = 30118984092. Its totient is φ = 6448897920.

The previous prime is 16157623399. The next prime is 16157623451. The reversal of 16157623450 is 5432675161.

It can be written as a sum of positive squares in 6 ways, for example, as 11249359969 + 4908263481 = 106063^2 + 70059^2 .

It is a super-2 number, since 2×16157623450² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16157623451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330709 + ... + 376408.

Almost surely, 2^16157623450 is an apocalyptic number.

16157623450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16157623450 is a deficient number, since it is larger than the sum of its proper divisors (13961360642).

16157623450 is a wasteful number, since it uses less digits than its factorization.

16157623450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707586 (or 707581 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 16157623450 in words is "sixteen billion, one hundred fifty-seven million, six hundred twenty-three thousand, four hundred fifty".