61995612 has 24 divisors (see below), whose sum is σ = 165321856. Its totient is φ = 17713008.

The previous prime is 61995611. The next prime is 61995631. The reversal of 61995612 is 21659916.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61995611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368938 + ... + 369105.

Almost surely, 2^61995612 is an apocalyptic number.

It is an amenable number.

61995612 is an abundant number, since it is smaller than the sum of its proper divisors (103326244).

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

61995612 is a wasteful number, since it uses less digits than its factorization.

61995612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738057 (or 738055 counting only the distinct ones).

The product of its digits is 29160, while the sum is 39.

The square root of 61995612 is about 7873.7292308029. The cubic root of 61995612 is about 395.7798235282.

It can be divided in two parts, 6199 and 5612, that added together give a palindrome (11811).

The spelling of 61995612 in words is "sixty-one million, nine hundred ninety-five thousand, six hundred twelve".