351526661 has 16 divisors (see below), whose sum is σ = 378907200. Its totient is φ = 325449600.

The previous prime is 351526621. The next prime is 351526699. The reversal of 351526661 is 166625153.

It is not a de Polignac number, because 351526661 - 2⁶ = 351526597 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 (351526601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67646 + ... + 72656.

It is an arithmetic number, because the mean of its divisors is an integer number (23681700).

Almost surely, 2^351526661 is an apocalyptic number.

It is an amenable number.

351526661 is a deficient number, since it is larger than the sum of its proper divisors (27380539).

351526661 is a wasteful number, since it uses less digits than its factorization.

351526661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140.

The product of its digits is 32400, while the sum is 35.

The square root of 351526661 is about 18749.0442689754. The cubic root of 351526661 is about 705.7530380616.

The spelling of 351526661 in words is "three hundred fifty-one million, five hundred twenty-six thousand, six hundred sixty-one".