661476102 has 16 divisors (see below), whose sum is σ = 1511945472. Its totient is φ = 188993160.

The previous prime is 661476097. The next prime is 661476139. The reversal of 661476102 is 201674166.

661476102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×661476102² = 875101267034228808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7874674 + ... + 7874757.

It is an arithmetic number, because the mean of its divisors is an integer number (94496592).

Almost surely, 2^661476102 is an apocalyptic number.

661476102 is an abundant number, since it is smaller than the sum of its proper divisors (850469370).

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

661476102 is a wasteful number, since it uses less digits than its factorization.

661476102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15749443.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 661476102 is about 25719.1777084727. The cubic root of 661476102 is about 871.3073672127.

The spelling of 661476102 in words is "six hundred sixty-one million, four hundred seventy-six thousand, one hundred two".