61641675 has 96 divisors (see below), whose sum is σ = 121420800. Its totient is φ = 30602880.

The previous prime is 61641653. The next prime is 61641721. The reversal of 61641675 is 57614616.

61641675 is a `hidden beast` number, since 6 + 1 + 641 + 6 + 7 + 5 = 666.

It is not a de Polignac number, because 61641675 - 2⁶ = 61641611 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 919992 + ... + 920058.

It is an arithmetic number, because the mean of its divisors is an integer number (1264800).

Almost surely, 2^61641675 is an apocalyptic number.

61641675 is a deficient number, since it is larger than the sum of its proper divisors (59779125).

61641675 is a wasteful number, since it uses less digits than its factorization.

61641675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 151 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 61641675 is about 7851.2212425839. The cubic root of 61641675 is about 395.0252080265.

The spelling of 61641675 in words is "sixty-one million, six hundred forty-one thousand, six hundred seventy-five".