2401666556 has 24 divisors (see below), whose sum is σ = 4242542304. Its totient is φ = 1189563840.

The previous prime is 2401666511. The next prime is 2401666571. The reversal of 2401666556 is 6556661042.

It is a super-2 number, since 2×2401666556² = 11536004492417802272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184106 + ... + 196718.

It is an arithmetic number, because the mean of its divisors is an integer number (176772596).

Almost surely, 2^2401666556 is an apocalyptic number.

It is an amenable number.

2401666556 is a deficient number, since it is larger than the sum of its proper divisors (1840875748).

2401666556 is a wasteful number, since it uses less digits than its factorization.

2401666556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13061 (or 13059 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 2401666556 is about 49006.8011198446. The cubic root of 2401666556 is about 1339.1757305434.

The spelling of 2401666556 in words is "two billion, four hundred one million, six hundred sixty-six thousand, five hundred fifty-six".