455740662640 has 40 divisors (see below), whose sum is σ = 1059646272048. Its totient is φ = 182287795200.

The previous prime is 455740662563. The next prime is 455740662653. The reversal of 455740662640 is 46266047554.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1770115 + ... + 2011165.

Almost surely, 2^455740662640 is an apocalyptic number.

455740662640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455740662640 is an abundant number, since it is smaller than the sum of its proper divisors (603905609408).

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

455740662640 is a wasteful number, since it uses less digits than its factorization.

455740662640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264697 (or 264691 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 49.

The spelling of 455740662640 in words is "four hundred fifty-five billion, seven hundred forty million, six hundred sixty-two thousand, six hundred forty".