56642154015 has 8 divisors (see below), whose sum is σ = 90627446448. Its totient is φ = 30209148800.

The previous prime is 56642153969. The next prime is 56642154043. The reversal of 56642154015 is 51045124665.

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

It is not a de Polignac number, because 56642154015 - 2¹³ = 56642145823 is a prime.

It is a super-2 number, since 2×56642154015² (a number of 22 digits) 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, 1888071786 + ... + 1888071815.

It is an arithmetic number, because the mean of its divisors is an integer number (11328430806).

Almost surely, 2^56642154015 is an apocalyptic number.

56642154015 is a deficient number, since it is larger than the sum of its proper divisors (33985292433).

56642154015 is a wasteful number, since it uses less digits than its factorization.

56642154015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3776143609.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 56642154015 in words is "fifty-six billion, six hundred forty-two million, one hundred fifty-four thousand, fifteen".