616506152 has 8 divisors (see below), whose sum is σ = 1155949050. Its totient is φ = 308253072.

The previous prime is 616506151. The next prime is 616506203. The reversal of 616506152 is 251605616.

It can be written as a sum of positive squares in only one way, i.e., 609398596 + 7107556 = 24686^2 + 2666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×616506152³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (616506151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38531627 + ... + 38531642.

Almost surely, 2^616506152 is an apocalyptic number.

It is an amenable number.

616506152 is a deficient number, since it is larger than the sum of its proper divisors (539442898).

616506152 is a wasteful number, since it uses less digits than its factorization.

616506152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77063275 (or 77063271 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 616506152 is about 24829.5419208652. The cubic root of 616506152 is about 851.0971539216.

The spelling of 616506152 in words is "six hundred sixteen million, five hundred six thousand, one hundred fifty-two".