61165155403 has 8 divisors (see below), whose sum is σ = 66734228016. Its totient is φ = 55597516800.

The previous prime is 61165155397. The next prime is 61165155407. The reversal of 61165155403 is 30455156116.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61165155403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61165155407) 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, 268326 + ... + 440827.

It is an arithmetic number, because the mean of its divisors is an integer number (8341778502).

Almost surely, 2^61165155403 is an apocalyptic number.

61165155403 is a deficient number, since it is larger than the sum of its proper divisors (5569072613).

61165155403 is a wasteful number, since it uses less digits than its factorization.

61165155403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717005.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 61165155403 in words is "sixty-one billion, one hundred sixty-five million, one hundred fifty-five thousand, four hundred three".