102666051 has 12 divisors (see below), whose sum is σ = 148470712. Its totient is φ = 68363136.

The previous prime is 102666049. The next prime is 102666121. The reversal of 102666051 is 150666201.

It is a happy number.

It is not a de Polignac number, because 102666051 - 2¹ = 102666049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102668051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1875 + ... + 14451.

Almost surely, 2^102666051 is an apocalyptic number.

102666051 is a deficient number, since it is larger than the sum of its proper divisors (45804661).

102666051 is a wasteful number, since it uses less digits than its factorization.

102666051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13490 (or 13487 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 102666051 is about 10132.4257214154. The cubic root of 102666051 is about 468.2476636765.

The spelling of 102666051 in words is "one hundred two million, six hundred sixty-six thousand, fifty-one".