662061231 has 12 divisors (see below), whose sum is σ = 1029873208. Its totient is φ = 407422224.

The previous prime is 662061227. The next prime is 662061247. The reversal of 662061231 is 132160266.

662061231 is a `hidden beast` number, since 6 + 620 + 6 + 1 + 2 + 31 = 666.

It is not a de Polignac number, because 662061231 - 2² = 662061227 is a prime.

It is a super-2 number, since 2×662061231² = 876650147186470722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 662061195 and 662061204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662061221) 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, 2829205 + ... + 2829438.

Almost surely, 2^662061231 is an apocalyptic number.

662061231 is a deficient number, since it is larger than the sum of its proper divisors (367811977).

662061231 is a wasteful number, since it uses less digits than its factorization.

662061231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5658662 (or 5658659 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 662061231 is about 25730.5505382221. The cubic root of 662061231 is about 871.5642053927.

The spelling of 662061231 in words is "six hundred sixty-two million, sixty-one thousand, two hundred thirty-one".