61165642 has 8 divisors (see below), whose sum is σ = 91782432. Its totient is φ = 30571500.

The previous prime is 61165633. The next prime is 61165661. The reversal of 61165642 is 24656116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×61165642² = 7482471522544328, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5467 + ... + 12337.

It is an arithmetic number, because the mean of its divisors is an integer number (11472804).

Almost surely, 2^61165642 is an apocalyptic number.

61165642 is a deficient number, since it is larger than the sum of its proper divisors (30616790).

61165642 is a wasteful number, since it uses less digits than its factorization.

61165642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11324.

The product of its digits is 8640, while the sum is 31.

The square root of 61165642 is about 7820.8466293618. The cubic root of 61165642 is about 394.0057073563.

The spelling of 61165642 in words is "sixty-one million, one hundred sixty-five thousand, six hundred forty-two".