611651612 has 72 divisors (see below), whose sum is σ = 1298499216. Its totient is φ = 250272000.

The previous prime is 611651587. The next prime is 611651617. The reversal of 611651612 is 216156116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611651617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256787 + ... + 259157.

Almost surely, 2^611651612 is an apocalyptic number.

It is an amenable number.

611651612 is an abundant number, since it is smaller than the sum of its proper divisors (686847604).

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

611651612 is a wasteful number, since it uses less digits than its factorization.

611651612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451 (or 2438 counting only the distinct ones).

The product of its digits is 2160, while the sum is 29.

The square root of 611651612 is about 24731.5913762135. The cubic root of 611651612 is about 848.8573398051.

The spelling of 611651612 in words is "six hundred eleven million, six hundred fifty-one thousand, six hundred twelve".