102193744165538 has 16 divisors (see below), whose sum is σ = 153352502580480. Its totient is φ = 51076244973600.

The previous prime is 102193744165537. The next prime is 102193744165543. The reversal of 102193744165538 is 835561447391201.

It is a super-2 number, since 2×102193744165538² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102193744165537) 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, 125966558 + ... + 126775238.

It is an arithmetic number, because the mean of its divisors is an integer number (9584531411280).

It is a 1-persistent number, because it is pandigital, but 2⋅102193744165538 = 204387488331076 is not.

Almost surely, 2^{102193744165538} is an apocalyptic number.

102193744165538 is a deficient number, since it is larger than the sum of its proper divisors (51158758414942).

102193744165538 is a wasteful number, since it uses less digits than its factorization.

102193744165538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834113.

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 102193744165538 in words is "one hundred two trillion, one hundred ninety-three billion, seven hundred forty-four million, one hundred sixty-five thousand, five hundred thirty-eight".