30166131856 has 45 divisors (see below), whose sum is σ = 68000190771. Its totient is φ = 12926258016.

The previous prime is 30166131839. The next prime is 30166131911. The reversal of 30166131856 is 65813166103.

The square root of 30166131856 is 173684.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×30166131856² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4860051 + ... + 4866253.

Almost surely, 2^30166131856 is an apocalyptic number.

30166131856 is the 173684-th square number.

It is an amenable number.

30166131856 is an abundant number, since it is smaller than the sum of its proper divisors (37834058915).

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

30166131856 is an frugal number, since it uses more digits than its factorization.

30166131856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12428 (or 6212 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

Adding to 30166131856 its reverse (65813166103), we get a palindrome (95979297959).

The spelling of 30166131856 in words is "thirty billion, one hundred sixty-six million, one hundred thirty-one thousand, eight hundred fifty-six".