61142344662 has 32 divisors (see below), whose sum is σ = 139762312704. Its totient is φ = 17468193600.

The previous prime is 61142344657. The next prime is 61142344673. The reversal of 61142344662 is 26644324116.

It is a self number, because there is not a number n which added to its sum of digits gives 61142344662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910087 + ... + 974957.

It is an arithmetic number, because the mean of its divisors is an integer number (4367572272).

Almost surely, 2^61142344662 is an apocalyptic number.

61142344662 is an abundant number, since it is smaller than the sum of its proper divisors (78619968042).

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

61142344662 is a wasteful number, since it uses less digits than its factorization.

61142344662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87324.

The product of its digits is 165888, while the sum is 39.

Adding to 61142344662 its reverse (26644324116), we get a palindrome (87786668778).

It can be divided in two parts, 611423 and 44662, that added together give a triangular number (656085 = T₁₁₄₅).

The spelling of 61142344662 in words is "sixty-one billion, one hundred forty-two million, three hundred forty-four thousand, six hundred sixty-two".