16161412545 has 64 divisors (see below), whose sum is σ = 29266272000. Its totient is φ = 8460384768.

The previous prime is 16161412537. The next prime is 16161412567. The reversal of 16161412545 is 54521416161.

16161412545 is a `hidden beast` number, since 1 + 616 + 14 + 1 + 25 + 4 + 5 = 666.

16161412545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16161412545 - 2³ = 16161412537 is a prime.

It is a super-2 number, since 2×16161412545² (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1665247 + ... + 1674923.

It is an arithmetic number, because the mean of its divisors is an integer number (457285500).

Almost surely, 2^16161412545 is an apocalyptic number.

16161412545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16161412545 is a deficient number, since it is larger than the sum of its proper divisors (13104859455).

16161412545 is a wasteful number, since it uses less digits than its factorization.

16161412545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9919 (or 9913 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The spelling of 16161412545 in words is "sixteen billion, one hundred sixty-one million, four hundred twelve thousand, five hundred forty-five".