533766628161557 has 48 divisors (see below), whose sum is σ = 627382715984640. Its totient is φ = 452766768854400.

The previous prime is 533766628161553. The next prime is 533766628161581. The reversal of 533766628161557 is 755161826667335.

It is not a de Polignac number, because 533766628161557 - 2² = 533766628161553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533766628161553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6388012223 + ... + 6388095779.

It is an arithmetic number, because the mean of its divisors is an integer number (13070473249680).

Almost surely, 2^{533766628161557} is an apocalyptic number.

It is an amenable number.

533766628161557 is a deficient number, since it is larger than the sum of its proper divisors (93616087823083).

533766628161557 is a wasteful number, since it uses less digits than its factorization.

533766628161557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86442 (or 86435 counting only the distinct ones).

The product of its digits is 1143072000, while the sum is 71.

The spelling of 533766628161557 in words is "five hundred thirty-three trillion, seven hundred sixty-six billion, six hundred twenty-eight million, one hundred sixty-one thousand, five hundred fifty-seven".