102661326502434 has 64 divisors (see below), whose sum is σ = 261765932359680. Its totient is φ = 29214947754000.

The previous prime is 102661326502429. The next prime is 102661326502457. The reversal of 102661326502434 is 434205623166201.

102661326502434 is a `hidden beast` number, since 1 + 0 + 2 + 6 + 6 + 132 + 6 + 502 + 4 + 3 + 4 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102661326502434.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 540922674 + ... + 541112429.

It is an arithmetic number, because the mean of its divisors is an integer number (4090092693120).

Almost surely, 2^{102661326502434} is an apocalyptic number.

102661326502434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

102661326502434 is an abundant number, since it is smaller than the sum of its proper divisors (159104605857246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102661326502434 is a wasteful number, since it uses less digits than its factorization.

102661326502434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082035372 (or 1082035366 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

Adding to 102661326502434 its reverse (434205623166201), we get a palindrome (536866949668635).

The spelling of 102661326502434 in words is "one hundred two trillion, six hundred sixty-one billion, three hundred twenty-six million, five hundred two thousand, four hundred thirty-four".