16661245015102 has 16 divisors (see below), whose sum is σ = 25424475408000. Its totient is φ = 8186666171040.

The previous prime is 16661245015097. The next prime is 16661245015109. The reversal of 16661245015102 is 20151054216661.

It is a super-2 number, since 2×16661245015102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16661245015109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61437102 + ... + 61707697.

It is an arithmetic number, because the mean of its divisors is an integer number (1589029713000).

Almost surely, 2^{16661245015102} is an apocalyptic number.

16661245015102 is a deficient number, since it is larger than the sum of its proper divisors (8763230392898).

16661245015102 is a wasteful number, since it uses less digits than its factorization.

16661245015102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123145971.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 16661245015102 in words is "sixteen trillion, six hundred sixty-one billion, two hundred forty-five million, fifteen thousand, one hundred two".