611632655 has 4 divisors (see below), whose sum is σ = 733959192. Its totient is φ = 489306120.

The previous prime is 611632631. The next prime is 611632673. The reversal of 611632655 is 556236116.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 611632655 - 2¹⁶ = 611567119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61163261 + ... + 61163270.

It is an arithmetic number, because the mean of its divisors is an integer number (183489798).

Almost surely, 2^611632655 is an apocalyptic number.

611632655 is a deficient number, since it is larger than the sum of its proper divisors (122326537).

611632655 is a wasteful number, since it uses less digits than its factorization.

611632655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122326536.

The product of its digits is 32400, while the sum is 35.

The square root of 611632655 is about 24731.2081184887. The cubic root of 611632655 is about 848.8485701316.

The spelling of 611632655 in words is "six hundred eleven million, six hundred thirty-two thousand, six hundred fifty-five".