7641660404 has 24 divisors (see below), whose sum is σ = 15434646528. Its totient is φ = 3242570400.

The previous prime is 7641660343. The next prime is 7641660413. The reversal of 7641660404 is 4040661467.

It is a super-2 number, since 2×7641660404² (a number of 21 digits) 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, 1348244 + ... + 1353899.

It is an arithmetic number, because the mean of its divisors is an integer number (643110272).

Almost surely, 2^7641660404 is an apocalyptic number.

It is an amenable number.

7641660404 is an abundant number, since it is smaller than the sum of its proper divisors (7792986124).

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

7641660404 is a wasteful number, since it uses less digits than its factorization.

7641660404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702255 (or 2702253 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 7641660404 is about 87416.5911254837. The cubic root of 7641660404 is about 1969.6810707904.

The spelling of 7641660404 in words is "seven billion, six hundred forty-one million, six hundred sixty thousand, four hundred four".