1252661662 has 16 divisors (see below), whose sum is σ = 2177667072. Its totient is φ = 529293240.

The previous prime is 1252661611. The next prime is 1252661701. The reversal of 1252661662 is 2661662521.

It is a super-2 number, since 2×1252661662² = 3138322478889204488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629118 + ... + 631105.

It is an arithmetic number, because the mean of its divisors is an integer number (136104192).

Almost surely, 2^1252661662 is an apocalyptic number.

1252661662 is a deficient number, since it is larger than the sum of its proper divisors (925005410).

1252661662 is a wasteful number, since it uses less digits than its factorization.

1252661662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260303.

The product of its digits is 51840, while the sum is 37.

The square root of 1252661662 is about 35392.9606277859. The cubic root of 1252661662 is about 1077.9813865663.

The spelling of 1252661662 in words is "one billion, two hundred fifty-two million, six hundred sixty-one thousand, six hundred sixty-two".