2620662155 has 8 divisors (see below), whose sum is σ = 3145159584. Its totient is φ = 2096286400.

The previous prime is 2620662139. The next prime is 2620662167. The reversal of 2620662155 is 5512660262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2620662155 - 2⁴ = 2620662139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26735 + ... + 77175.

It is an arithmetic number, because the mean of its divisors is an integer number (393144948).

Almost surely, 2^2620662155 is an apocalyptic number.

2620662155 is a deficient number, since it is larger than the sum of its proper divisors (524497429).

2620662155 is a wasteful number, since it uses less digits than its factorization.

2620662155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60837.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 2620662155 is about 51192.4032938482. The cubic root of 2620662155 is about 1378.7018098536.

The spelling of 2620662155 in words is "two billion, six hundred twenty million, six hundred sixty-two thousand, one hundred fifty-five".