3644460042155 has 16 divisors (see below), whose sum is σ = 4408283864064. Its totient is φ = 2892285325440.

The previous prime is 3644460042121. The next prime is 3644460042169. The reversal of 3644460042155 is 5512400644463.

It is a de Polignac number, because none of the positive numbers 2^k-3644460042155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5404865 + ... + 6041645.

It is an arithmetic number, because the mean of its divisors is an integer number (275517741504).

Almost surely, 2^{3644460042155} is an apocalyptic number.

3644460042155 is a deficient number, since it is larger than the sum of its proper divisors (763823821909).

3644460042155 is a wasteful number, since it uses less digits than its factorization.

3644460042155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645926.

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 3644460042155 in words is "three trillion, six hundred forty-four billion, four hundred sixty million, forty-two thousand, one hundred fifty-five".