16161665060619 has 24 divisors (see below), whose sum is σ = 25238190362112. Its totient is φ = 9906941030400.

The previous prime is 16161665060617. The next prime is 16161665060627. The reversal of 16161665060619 is 91606056616161.

It is a happy number.

16161665060619 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 16 + 6 + 5 + 0 + 6 + 0 + 619 = 666.

It is not a de Polignac number, because 16161665060619 - 2¹ = 16161665060617 is a prime.

It is a super-2 number, since 2×16161665060619² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16161665060617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268712907 + ... + 268773044.

It is an arithmetic number, because the mean of its divisors is an integer number (1051591265088).

Almost surely, 2^{16161665060619} is an apocalyptic number.

16161665060619 is a deficient number, since it is larger than the sum of its proper divisors (9076525301493).

16161665060619 is a wasteful number, since it uses less digits than its factorization.

16161665060619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537486227 (or 537486224 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 16161665060619 in words is "sixteen trillion, one hundred sixty-one billion, six hundred sixty-five million, sixty thousand, six hundred nineteen".