611606650020 has 48 divisors (see below), whose sum is σ = 1758782372928. Its totient is φ = 158687130240.

The previous prime is 611606650019. The next prime is 611606650049. The reversal of 611606650020 is 20056606116.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137747026 + ... + 137751465.

It is an arithmetic number, because the mean of its divisors is an integer number (36641299436).

Almost surely, 2^611606650020 is an apocalyptic number.

611606650020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

611606650020 is an abundant number, since it is smaller than the sum of its proper divisors (1147175722908).

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

611606650020 is a wasteful number, since it uses less digits than its factorization.

611606650020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275498540 (or 275498538 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 611606650020 in words is "six hundred eleven billion, six hundred six million, six hundred fifty thousand, twenty".