476661047436440 has 128 divisors (see below), whose sum is σ = 1137524288771520. Its totient is φ = 179140893081600.

The previous prime is 476661047436421. The next prime is 476661047436499. The reversal of 476661047436440 is 44634740166674.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2899827455 + ... + 2899991825.

Almost surely, 2^{476661047436440} is an apocalyptic number.

476661047436440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 476661047436440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568762144385760).

476661047436440 is an abundant number, since it is smaller than the sum of its proper divisors (660863241335080).

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

476661047436440 is a wasteful number, since it uses less digits than its factorization.

476661047436440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171693 (or 171689 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 62.

The spelling of 476661047436440 in words is "four hundred seventy-six trillion, six hundred sixty-one billion, forty-seven million, four hundred thirty-six thousand, four hundred forty".