2656004001 has 8 divisors (see below), whose sum is σ = 4047244224. Its totient is φ = 1517716560.

The previous prime is 2656003991. The next prime is 2656004083. The reversal of 2656004001 is 1004006562.

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

It is not a de Polignac number, because 2656004001 - 2¹⁰ = 2656002977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2656004101) 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, 63238170 + ... + 63238211.

It is an arithmetic number, because the mean of its divisors is an integer number (505905528).

Almost surely, 2^2656004001 is an apocalyptic number.

2656004001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2656004001 is a deficient number, since it is larger than the sum of its proper divisors (1391240223).

2656004001 is a wasteful number, since it uses less digits than its factorization.

2656004001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126476391.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2656004001 is about 51536.4337241141. The cubic root of 2656004001 is about 1384.8718099153.

The spelling of 2656004001 in words is "two billion, six hundred fifty-six million, four thousand, one".