61645496 has 32 divisors (see below), whose sum is σ = 126403200. Its totient is φ = 27951840.

The previous prime is 61645471. The next prime is 61645627. The reversal of 61645496 is 69454616.

61645496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57461 + ... + 58523.

It is an arithmetic number, because the mean of its divisors is an integer number (3950100).

Almost surely, 2^61645496 is an apocalyptic number.

It is an amenable number.

61645496 is an abundant number, since it is smaller than the sum of its proper divisors (64757704).

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

61645496 is a wasteful number, since it uses less digits than its factorization.

61645496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739 (or 1735 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 61645496 is about 7851.4645767525. The cubic root of 61645496 is about 395.0333700377.

The spelling of 61645496 in words is "sixty-one million, six hundred forty-five thousand, four hundred ninety-six".