2620440051816 has 32 divisors (see below), whose sum is σ = 6895894874400. Its totient is φ = 827507384640.

The previous prime is 2620440051743. The next prime is 2620440051829. The reversal of 2620440051816 is 6181500440262.

It is a happy number.

It is a super-2 number, since 2×2620440051816² (a number of 26 digits) contains 22 as substring.

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, 2873289075 + ... + 2873289986.

It is an arithmetic number, because the mean of its divisors is an integer number (215496714825).

Almost surely, 2^{2620440051816} is an apocalyptic number.

It is an amenable number.

2620440051816 is an abundant number, since it is smaller than the sum of its proper divisors (4275454822584).

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

2620440051816 is a wasteful number, since it uses less digits than its factorization.

2620440051816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5746579089 (or 5746579085 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 2620440051816 in words is "two trillion, six hundred twenty billion, four hundred forty million, fifty-one thousand, eight hundred sixteen".