16116811545 has 16 divisors (see below), whose sum is σ = 25897577472. Its totient is φ = 8558739840.

The previous prime is 16116811493. The next prime is 16116811561. The reversal of 16116811545 is 54511861161.

It is not a de Polignac number, because 16116811545 - 2¹⁷ = 16116680473 is a prime.

It is a super-2 number, since 2×16116811545² (a number of 21 digits) contains 22 as substring.

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, 2302201 + ... + 2309190.

It is an arithmetic number, because the mean of its divisors is an integer number (1618598592).

Almost surely, 2^16116811545 is an apocalyptic number.

16116811545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16116811545 is a deficient number, since it is larger than the sum of its proper divisors (9780765927).

16116811545 is a wasteful number, since it uses less digits than its factorization.

16116811545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611632.

The product of its digits is 28800, while the sum is 39.

The spelling of 16116811545 in words is "sixteen billion, one hundred sixteen million, eight hundred eleven thousand, five hundred forty-five".