611661372 has 48 divisors (see below), whose sum is σ = 1683720192. Its totient is φ = 169122240.

The previous prime is 611661367. The next prime is 611661373. The reversal of 611661372 is 273166116.

611661372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611661373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114843 + ... + 120050.

It is an arithmetic number, because the mean of its divisors is an integer number (35077504).

Almost surely, 2^611661372 is an apocalyptic number.

611661372 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

611661372 is an abundant number, since it is smaller than the sum of its proper divisors (1072058820).

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

611661372 is a wasteful number, since it uses less digits than its factorization.

611661372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234938 (or 234936 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 611661372 is about 24731.7886939057. The cubic root of 611661372 is about 848.8618547955.

The spelling of 611661372 in words is "six hundred eleven million, six hundred sixty-one thousand, three hundred seventy-two".