73561016 has 32 divisors (see below), whose sum is σ = 145428480. Its totient is φ = 34831200.

The previous prime is 73561013. The next prime is 73561073. The reversal of 73561016 is 61016537.

It is a super-2 number, since 2×73561016² = 10822446149904512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73561016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73561013) by changing a digit.

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, 8501 + ... + 14811.

It is an arithmetic number, because the mean of its divisors is an integer number (4544640).

Almost surely, 2^73561016 is an apocalyptic number.

It is an amenable number.

73561016 is a deficient number, since it is larger than the sum of its proper divisors (71867464).

73561016 is a wasteful number, since it uses less digits than its factorization.

73561016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395 (or 6391 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 73561016 is about 8576.7718869048. The cubic root of 73561016 is about 419.0018170244.

The spelling of 73561016 in words is "seventy-three million, five hundred sixty-one thousand, sixteen".