30661453424220 has 48 divisors (see below), whose sum is σ = 87946022511648. Its totient is φ = 7976963491840.

The previous prime is 30661453424137. The next prime is 30661453424243. The reversal of 30661453424220 is 2242435416603.

It is a happy number.

It is a super-2 number, since 2×30661453424220² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6232000269 + ... + 6232005188.

It is an arithmetic number, because the mean of its divisors is an integer number (1832208802326).

Almost surely, 2^{30661453424220} is an apocalyptic number.

30661453424220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30661453424220 is an abundant number, since it is smaller than the sum of its proper divisors (57284569087428).

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

30661453424220 is a wasteful number, since it uses less digits than its factorization.

30661453424220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12464005510 (or 12464005508 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 30661453424220 in words is "thirty trillion, six hundred sixty-one billion, four hundred fifty-three million, four hundred twenty-four thousand, two hundred twenty".