6655156563 has 8 divisors (see below), whose sum is σ = 9680227776. Its totient is φ = 4033428200.

The previous prime is 6655156507. The next prime is 6655156567. The reversal of 6655156563 is 3656515566.

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 6655156563 - 2⁶ = 6655156499 is a prime.

It is a super-2 number, since 2×6655156563² = 88582217756083945938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6655156567) 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, 100835673 + ... + 100835738.

It is an arithmetic number, because the mean of its divisors is an integer number (1210028472).

Almost surely, 2^6655156563 is an apocalyptic number.

6655156563 is a deficient number, since it is larger than the sum of its proper divisors (3025071213).

6655156563 is a wasteful number, since it uses less digits than its factorization.

6655156563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201671425.

The product of its digits is 2430000, while the sum is 48.

The square root of 6655156563 is about 81579.1429410729. The cubic root of 6655156563 is about 1880.9882915848.

The spelling of 6655156563 in words is "six billion, six hundred fifty-five million, one hundred fifty-six thousand, five hundred sixty-three".