2064293581440 has 128 divisors (see below), whose sum is σ = 6627274315200. Its totient is φ = 546517942272.

The previous prime is 2064293581409. The next prime is 2064293581459. The reversal of 2064293581440 is 441853924602.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×2064293581440² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2064293581440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3600577 + ... + 4134336.

Almost surely, 2^{2064293581440} is an apocalyptic number.

2064293581440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2064293581440 is an abundant number, since it is smaller than the sum of its proper divisors (4562980733760).

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

2064293581440 is a wasteful number, since it uses less digits than its factorization.

2064293581440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735074 (or 7735062 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 2064293581440 in words is "two trillion, sixty-four billion, two hundred ninety-three million, five hundred eighty-one thousand, four hundred forty".