611211552056 has 48 divisors (see below), whose sum is σ = 1333196376840. Its totient is φ = 261934223040.

The previous prime is 611211552013. The next prime is 611211552089. The reversal of 611211552056 is 650255112116.

It is a super-2 number, since 2×611211552056² (a number of 24 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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12417911 + ... + 12467033.

Almost surely, 2^611211552056 is an apocalyptic number.

It is an amenable number.

611211552056 is an abundant number, since it is smaller than the sum of its proper divisors (721984824784).

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

611211552056 is a wasteful number, since it uses less digits than its factorization.

611211552056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80884 (or 80873 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 611211552056 in words is "six hundred eleven billion, two hundred eleven million, five hundred fifty-two thousand, fifty-six".