30553220201986 has 4 divisors (see below), whose sum is σ = 45829830302982. Its totient is φ = 15276610100992.

The previous prime is 30553220201969. The next prime is 30553220202007. The reversal of 30553220201986 is 68910202235503.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19987918516225 + 10565301685761 = 4470785^2 + 3250431^2 .

It is a super-2 number, since 2×30553220201986² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7638305050495 + ... + 7638305050498.

Almost surely, 2^{30553220201986} is an apocalyptic number.

30553220201986 is a deficient number, since it is larger than the sum of its proper divisors (15276610100996).

30553220201986 is a wasteful number, since it uses less digits than its factorization.

30553220201986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15276610100995.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 30553220201986 in words is "thirty trillion, five hundred fifty-three billion, two hundred twenty million, two hundred one thousand, nine hundred eighty-six".