61075616 has 24 divisors (see below), whose sum is σ = 137420640. Its totient is φ = 26175168.

The previous prime is 61075583. The next prime is 61075621. The reversal of 61075616 is 61657016.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 136106 + ... + 136553.

It is an arithmetic number, because the mean of its divisors is an integer number (5725860).

Almost surely, 2^61075616 is an apocalyptic number.

It is an amenable number.

61075616 is an abundant number, since it is smaller than the sum of its proper divisors (76345024).

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

61075616 is a wasteful number, since it uses less digits than its factorization.

61075616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272676 (or 272668 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 61075616 is about 7815.0889950147. The cubic root of 61075616 is about 393.8123080703.

The spelling of 61075616 in words is "sixty-one million, seventy-five thousand, six hundred sixteen".