1516661061005 has 16 divisors (see below), whose sum is σ = 1882982323200. Its totient is φ = 1171514465280.

The previous prime is 1516661060983. The next prime is 1516661061007. The reversal of 1516661061005 is 5001601666151.

It is not a de Polignac number, because 1516661061005 - 2³² = 1512366093709 is a prime.

It is a super-2 number, since 2×1516661061005² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1516661061005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516661061007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11076500 + ... + 11212589.

It is an arithmetic number, because the mean of its divisors is an integer number (117686395200).

Almost surely, 2^{1516661061005} is an apocalyptic number.

It is an amenable number.

1516661061005 is a deficient number, since it is larger than the sum of its proper divisors (366321262195).

1516661061005 is a wasteful number, since it uses less digits than its factorization.

1516661061005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22289564.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 1516661061005 in words is "one trillion, five hundred sixteen billion, six hundred sixty-one million, sixty-one thousand, five".