15616768478201 has 8 divisors (see below), whose sum is σ = 17623939348800. Its totient is φ = 13707508381840.

The previous prime is 15616768478189. The next prime is 15616768478279. The reversal of 15616768478201 is 10287486761651.

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

It is a cyclic number.

It is not a de Polignac number, because 15616768478201 - 2¹⁴ = 15616768461817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15616768478281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24477693221 + ... + 24477693858.

It is an arithmetic number, because the mean of its divisors is an integer number (2202992418600).

Almost surely, 2^{15616768478201} is an apocalyptic number.

15616768478201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15616768478201 is a deficient number, since it is larger than the sum of its proper divisors (2007170870599).

15616768478201 is a wasteful number, since it uses less digits than its factorization.

15616768478201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48955387119.

The product of its (nonzero) digits is 27095040, while the sum is 62.

The spelling of 15616768478201 in words is "fifteen trillion, six hundred sixteen billion, seven hundred sixty-eight million, four hundred seventy-eight thousand, two hundred one".