258948102666 has 32 divisors (see below), whose sum is σ = 568243470528. Its totient is φ = 78015539840.

The previous prime is 258948102649. The next prime is 258948102683. The reversal of 258948102666 is 666201849852.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (258948102649) and next prime (258948102683).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11328051 + ... + 11350886.

It is an arithmetic number, because the mean of its divisors is an integer number (17757608454).

Almost surely, 2^258948102666 is an apocalyptic number.

258948102666 is an abundant number, since it is smaller than the sum of its proper divisors (309295367862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258948102666 is a wasteful number, since it uses less digits than its factorization.

258948102666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22679126.

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 258948102666 in words is "two hundred fifty-eight billion, nine hundred forty-eight million, one hundred two thousand, six hundred sixty-six".