102906666573 has 4 divisors (see below), whose sum is σ = 137208888768. Its totient is φ = 68604444380.

The previous prime is 102906666557. The next prime is 102906666601. The reversal of 102906666573 is 375666609201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102906666573 - 2⁴ = 102906666557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102906666523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17151111093 + ... + 17151111098.

It is an arithmetic number, because the mean of its divisors is an integer number (34302222192).

Almost surely, 2^102906666573 is an apocalyptic number.

It is an amenable number.

102906666573 is a deficient number, since it is larger than the sum of its proper divisors (34302222195).

102906666573 is an equidigital number, since it uses as much as digits as its factorization.

102906666573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34302222194.

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 102906666573 in words is "one hundred two billion, nine hundred six million, six hundred sixty-six thousand, five hundred seventy-three".