325526401666 has 8 divisors (see below), whose sum is σ = 488296843920. Its totient is φ = 162760787028.

The previous prime is 325526401639. The next prime is 325526401693. The reversal of 325526401666 is 666104625523.

It is an interprime number because it is at equal distance from previous prime (325526401639) and next prime (325526401693).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×325526401666² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033336 + ... + 1311043.

It is an arithmetic number, because the mean of its divisors is an integer number (61037105490).

Almost surely, 2^325526401666 is an apocalyptic number.

325526401666 is a deficient number, since it is larger than the sum of its proper divisors (162770442254).

325526401666 is a wasteful number, since it uses less digits than its factorization.

325526401666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413808.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 325526401666 in words is "three hundred twenty-five billion, five hundred twenty-six million, four hundred one thousand, six hundred sixty-six".