7315661420 has 24 divisors (see below), whose sum is σ = 15573342624. Its totient is φ = 2886178176.

The previous prime is 7315661407. The next prime is 7315661429. The reversal of 7315661420 is 241665137.

It is not an unprimeable number, because it can be changed into a prime (7315661429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2503904 + ... + 2506823.

It is an arithmetic number, because the mean of its divisors is an integer number (648889276).

Almost surely, 2^7315661420 is an apocalyptic number.

It is an amenable number.

7315661420 is an abundant number, since it is smaller than the sum of its proper divisors (8257681204).

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

7315661420 is a wasteful number, since it uses less digits than its factorization.

7315661420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010809 (or 5010807 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 7315661420 is about 85531.6398767146. The cubic root of 7315661420 is about 1941.2636946791.

The spelling of 7315661420 in words is "seven billion, three hundred fifteen million, six hundred sixty-one thousand, four hundred twenty".