61113155562 has 20 divisors (see below), whose sum is σ = 136938737826. Its totient is φ = 20371051800.

The previous prime is 61113155533. The next prime is 61113155563. The reversal of 61113155562 is 26555131116.

61113155562 is a `hidden beast` number, since 6 + 1 + 11 + 31 + 55 + 562 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53662185801 + 7450969761 = 231651^2 + 86319^2 .

It is not an unprimeable number, because it can be changed into a prime (61113155563) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 188620689 + ... + 188621012.

Almost surely, 2^61113155562 is an apocalyptic number.

61113155562 is an abundant number, since it is smaller than the sum of its proper divisors (75825582264).

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

61113155562 is a wasteful number, since it uses less digits than its factorization.

61113155562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377241715 (or 377241706 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

Adding to 61113155562 its reverse (26555131116), we get a palindrome (87668286678).

The spelling of 61113155562 in words is "sixty-one billion, one hundred thirteen million, one hundred fifty-five thousand, five hundred sixty-two".