3640651554 has 16 divisors (see below), whose sum is σ = 7597881792. Its totient is φ = 1160787408.

The previous prime is 3640651543. The next prime is 3640651571. The reversal of 3640651554 is 4551560463.

It is a super-2 number, since 2×3640651554² = 26508687475285229832, which 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, 13190629 + ... + 13190904.

It is an arithmetic number, because the mean of its divisors is an integer number (474867612).

Almost surely, 2^3640651554 is an apocalyptic number.

3640651554 is an abundant number, since it is smaller than the sum of its proper divisors (3957230238).

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

3640651554 is a wasteful number, since it uses less digits than its factorization.

3640651554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26381561.

The product of its (nonzero) digits is 216000, while the sum is 39.

The square root of 3640651554 is about 60337.8119755763. The cubic root of 3640651554 is about 1538.3661135773.

The spelling of 3640651554 in words is "three billion, six hundred forty million, six hundred fifty-one thousand, five hundred fifty-four".