476020552661657 has 2 divisors, whose sum is σ = 476020552661658. Its totient is φ = 476020552661656.

The previous prime is 476020552661623. The next prime is 476020552661681. The reversal of 476020552661657 is 756166255020674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 475583150321161 + 437402340496 = 21807869^2 + 661364^2 .

It is a cyclic number.

It is not a de Polignac number, because 476020552661657 - 2¹⁴ = 476020552645273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 476020552661657.

It is not a weakly prime, because it can be changed into another prime (476020552661617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238010276330828 + 238010276330829.

It is an arithmetic number, because the mean of its divisors is an integer number (238010276330829).

Almost surely, 2^{476020552661657} is an apocalyptic number.

It is an amenable number.

476020552661657 is a deficient number, since it is larger than the sum of its proper divisors (1).

476020552661657 is an equidigital number, since it uses as much as digits as its factorization.

476020552661657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008000, while the sum is 62.

The spelling of 476020552661657 in words is "four hundred seventy-six trillion, twenty billion, five hundred fifty-two million, six hundred sixty-one thousand, six hundred fifty-seven".