2660264642064 has 80 divisors (see below), whose sum is σ = 6879812520960. Its totient is φ = 885792552960.

The previous prime is 2660264642029. The next prime is 2660264642071. The reversal of 2660264642064 is 4602464620662.

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

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, 218102014 + ... + 218114210.

It is an arithmetic number, because the mean of its divisors is an integer number (85997656512).

Almost surely, 2^{2660264642064} is an apocalyptic number.

2660264642064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2660264642064 is an abundant number, since it is smaller than the sum of its proper divisors (4219547878896).

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

2660264642064 is a wasteful number, since it uses less digits than its factorization.

2660264642064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16768 (or 16762 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 48.

The spelling of 2660264642064 in words is "two trillion, six hundred sixty billion, two hundred sixty-four million, six hundred forty-two thousand, sixty-four".