10201668555 has 32 divisors (see below), whose sum is σ = 17800796160. Its totient is φ = 4958778240.

The previous prime is 10201668551. The next prime is 10201668557. The reversal of 10201668555 is 55586610201.

It is not a de Polignac number, because 10201668555 - 2² = 10201668551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (10201668551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 315711 + ... + 346520.

It is an arithmetic number, because the mean of its divisors is an integer number (556274880).

Almost surely, 2^10201668555 is an apocalyptic number.

10201668555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10201668555 is a deficient number, since it is larger than the sum of its proper divisors (7599127605).

10201668555 is a wasteful number, since it uses less digits than its factorization.

10201668555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662331.

The product of its (nonzero) digits is 72000, while the sum is 39.

The spelling of 10201668555 in words is "ten billion, two hundred one million, six hundred sixty-eight thousand, five hundred fifty-five".