61516325402 has 8 divisors (see below), whose sum is σ = 105456557856. Its totient is φ = 26364139452.

The previous prime is 61516325399. The next prime is 61516325407. The reversal of 61516325402 is 20452361516.

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 (61516325407) 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, 2197011608 + ... + 2197011635.

It is an arithmetic number, because the mean of its divisors is an integer number (13182069732).

Almost surely, 2^61516325402 is an apocalyptic number.

61516325402 is a deficient number, since it is larger than the sum of its proper divisors (43940232454).

61516325402 is a wasteful number, since it uses less digits than its factorization.

61516325402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394023252.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 61516325402 its reverse (20452361516), we get a palindrome (81968686918).

The spelling of 61516325402 in words is "sixty-one billion, five hundred sixteen million, three hundred twenty-five thousand, four hundred two".