481662070400557 has 2 divisors, whose sum is σ = 481662070400558. Its totient is φ = 481662070400556.

The previous prime is 481662070400519. The next prime is 481662070400569. The reversal of 481662070400557 is 755004070266184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412314914080521 + 69347156320036 = 20305539^2 + 8327494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481662070400557 is a prime.

It is a super-2 number, since 2×481662070400557² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 481662070400498 and 481662070400507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481662070409557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240831035200278 + 240831035200279.

It is an arithmetic number, because the mean of its divisors is an integer number (240831035200279).

Almost surely, 2^{481662070400557} is an apocalyptic number.

It is an amenable number.

481662070400557 is a deficient number, since it is larger than the sum of its proper divisors (1).

481662070400557 is an equidigital number, since it uses as much as digits as its factorization.

481662070400557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 481662070400557 in words is "four hundred eighty-one trillion, six hundred sixty-two billion, seventy million, four hundred thousand, five hundred fifty-seven".