102060621665 has 16 divisors (see below), whose sum is σ = 123435614016. Its totient is φ = 81006868800.

The previous prime is 102060621631. The next prime is 102060621667. The reversal of 102060621665 is 566126060201.

It is not a de Polignac number, because 102060621665 - 2⁶ = 102060621601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102060621667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3371939 + ... + 3402071.

It is an arithmetic number, because the mean of its divisors is an integer number (7714725876).

Almost surely, 2^102060621665 is an apocalyptic number.

It is an amenable number.

102060621665 is a deficient number, since it is larger than the sum of its proper divisors (21374992351).

102060621665 is a wasteful number, since it uses less digits than its factorization.

102060621665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35440.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 102060621665 its reverse (566126060201), we get a palindrome (668186681866).

The spelling of 102060621665 in words is "one hundred two billion, sixty million, six hundred twenty-one thousand, six hundred sixty-five".