102051661636457 has 8 divisors (see below), whose sum is σ = 113447008469760. Its totient is φ = 91162774662480.

The previous prime is 102051661636453. The next prime is 102051661636493. The reversal of 102051661636457 is 754636166150201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102051661636457 - 2² = 102051661636453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102051661636399 and 102051661636408.

It is not an unprimeable number, because it can be changed into a prime (102051661636453) 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, 126614964407 + ... + 126614965212.

It is an arithmetic number, because the mean of its divisors is an integer number (14180876058720).

Almost surely, 2^{102051661636457} is an apocalyptic number.

It is an amenable number.

102051661636457 is a deficient number, since it is larger than the sum of its proper divisors (11395346833303).

102051661636457 is a wasteful number, since it uses less digits than its factorization.

102051661636457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253229929663.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 102051661636457 in words is "one hundred two trillion, fifty-one billion, six hundred sixty-one million, six hundred thirty-six thousand, four hundred fifty-seven".