2616590921 has 8 divisors (see below), whose sum is σ = 3166295040. Its totient is φ = 2110863168.

The previous prime is 2616590863. The next prime is 2616590923. The reversal of 2616590921 is 1290956162.

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

It is a cyclic number.

It is not a de Polignac number, because 2616590921 - 2²² = 2612396617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2616590923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10993961 + ... + 10994198.

It is an arithmetic number, because the mean of its divisors is an integer number (395786880).

Almost surely, 2^2616590921 is an apocalyptic number.

It is an amenable number.

2616590921 is a deficient number, since it is larger than the sum of its proper divisors (549704119).

2616590921 is a wasteful number, since it uses less digits than its factorization.

2616590921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21988183.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 2616590921 is about 51152.6237938974. The cubic root of 2616590921 is about 1377.9874958754.

The spelling of 2616590921 in words is "two billion, six hundred sixteen million, five hundred ninety thousand, nine hundred twenty-one".