464154656440 has 16 divisors (see below), whose sum is σ = 1044347977080. Its totient is φ = 185661862560.

The previous prime is 464154656429. The next prime is 464154656453. The reversal of 464154656440 is 44656451464.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5801933166 + ... + 5801933245.

Almost surely, 2^464154656440 is an apocalyptic number.

464154656440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

464154656440 is an abundant number, since it is smaller than the sum of its proper divisors (580193320640).

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

464154656440 is a wasteful number, since it uses less digits than its factorization.

464154656440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11603866422 (or 11603866418 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 49.

The spelling of 464154656440 in words is "four hundred sixty-four billion, one hundred fifty-four million, six hundred fifty-six thousand, four hundred forty".