263133604423557 has 12 divisors (see below), whose sum is σ = 434379283492960. Its totient is φ = 150362059670568.

The previous prime is 263133604423553. The next prime is 263133604423589. The reversal of 263133604423557 is 755324406331362.

263133604423557 is a `hidden beast` number, since 2 + 6 + 3 + 1 + 3 + 3 + 60 + 4 + 4 + 23 + 557 = 666.

It is not a de Polignac number, because 263133604423557 - 2² = 263133604423553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263133604423553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2088361939807 + ... + 2088361939932.

Almost surely, 2^{263133604423557} is an apocalyptic number.

It is an amenable number.

263133604423557 is a deficient number, since it is larger than the sum of its proper divisors (171245679069403).

263133604423557 is a wasteful number, since it uses less digits than its factorization.

263133604423557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176723879752 (or 4176723879749 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 54.

The spelling of 263133604423557 in words is "two hundred sixty-three trillion, one hundred thirty-three billion, six hundred four million, four hundred twenty-three thousand, five hundred fifty-seven".