611997116 has 6 divisors (see below), whose sum is σ = 1070994960. Its totient is φ = 305998556.

The previous prime is 611997109. The next prime is 611997137. The reversal of 611997116 is 611799116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76499636 + ... + 76499643.

It is an arithmetic number, because the mean of its divisors is an integer number (178499160).

Almost surely, 2^611997116 is an apocalyptic number.

It is an amenable number.

611997116 is a deficient number, since it is larger than the sum of its proper divisors (458997844).

611997116 is a wasteful number, since it uses less digits than its factorization.

611997116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152999283 (or 152999281 counting only the distinct ones).

The product of its digits is 20412, while the sum is 41.

The square root of 611997116 is about 24738.5754642421. The cubic root of 611997116 is about 849.0171412321.

The spelling of 611997116 in words is "six hundred eleven million, nine hundred ninety-seven thousand, one hundred sixteen".