30402221660 has 48 divisors (see below), whose sum is σ = 69038573184. Its totient is φ = 11202014208.

The previous prime is 30402221653. The next prime is 30402221669. The reversal of 30402221660 is 6612220403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30402221669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 935279 + ... + 967238.

It is an arithmetic number, because the mean of its divisors is an integer number (1438303608).

Almost surely, 2^30402221660 is an apocalyptic number.

It is an amenable number.

30402221660 is an abundant number, since it is smaller than the sum of its proper divisors (38636351524).

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

30402221660 is a wasteful number, since it uses less digits than its factorization.

30402221660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902590 (or 1902588 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 30402221660 in words is "thirty billion, four hundred two million, two hundred twenty-one thousand, six hundred sixty".