61500115442 has 8 divisors (see below), whose sum is σ = 93813735600. Its totient is φ = 30228870244.

The previous prime is 61500115429. The next prime is 61500115447. The reversal of 61500115442 is 24451100516.

61500115442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61500115447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260593592 + ... + 260593827.

It is an arithmetic number, because the mean of its divisors is an integer number (11726716950).

Almost surely, 2^61500115442 is an apocalyptic number.

61500115442 is a deficient number, since it is larger than the sum of its proper divisors (32313620158).

61500115442 is a wasteful number, since it uses less digits than its factorization.

61500115442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521187480.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 61500115442 its reverse (24451100516), we get a palindrome (85951215958).

The spelling of 61500115442 in words is "sixty-one billion, five hundred million, one hundred fifteen thousand, four hundred forty-two".