651402142266 has 16 divisors (see below), whose sum is σ = 1317442536000. Its totient is φ = 214694338848.

The previous prime is 651402142219. The next prime is 651402142283. The reversal of 651402142266 is 662241204156.

It is a super-2 number, since 2×651402142266² (a number of 24 digits) contains 22 as substring.

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, 609926566 + ... + 609927633.

It is an arithmetic number, because the mean of its divisors is an integer number (82340158500).

Almost surely, 2^651402142266 is an apocalyptic number.

651402142266 is an abundant number, since it is smaller than the sum of its proper divisors (666040393734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

651402142266 is a wasteful number, since it uses less digits than its factorization.

651402142266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219854293.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 651402142266 in words is "six hundred fifty-one billion, four hundred two million, one hundred forty-two thousand, two hundred sixty-six".