1640783411480 has 32 divisors (see below), whose sum is σ = 3691971230400. Its totient is φ = 656276288256.

The previous prime is 1640783411479. The next prime is 1640783411569. The reversal of 1640783411480 is 841143870461.

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, 436157 + ... + 1863276.

It is an arithmetic number, because the mean of its divisors is an integer number (115374100950).

Almost surely, 2^{1640783411480} is an apocalyptic number.

1640783411480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1640783411480 is an abundant number, since it is smaller than the sum of its proper divisors (2051187818920).

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

1640783411480 is a wasteful number, since it uses less digits than its factorization.

1640783411480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317283 (or 2317279 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 1640783411480 in words is "one trillion, six hundred forty billion, seven hundred eighty-three million, four hundred eleven thousand, four hundred eighty".