102664661 has 8 divisors (see below), whose sum is σ = 113896800. Its totient is φ = 91749040.

The previous prime is 102664643. The next prime is 102664699. The reversal of 102664661 is 166466201.

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 102664661 - 2¹⁰ = 102663637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102664361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78446 + ... + 79743.

It is an arithmetic number, because the mean of its divisors is an integer number (14237100).

Almost surely, 2^102664661 is an apocalyptic number.

102664661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102664661 is a deficient number, since it is larger than the sum of its proper divisors (11232139).

102664661 is a wasteful number, since it uses less digits than its factorization.

102664661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158259.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 102664661 is about 10132.3571295133. The cubic root of 102664661 is about 468.2455504587.

The spelling of 102664661 in words is "one hundred two million, six hundred sixty-four thousand, six hundred sixty-one".