61335877171552 has 12 divisors (see below), whose sum is σ = 120755008181556. Its totient is φ = 30667938585760.

The previous prime is 61335877171507. The next prime is 61335877171553. The reversal of 61335877171552 is 25517177853316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61335877171553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 958373080774 + ... + 958373080837.

It is an arithmetic number, because the mean of its divisors is an integer number (10062917348463).

Almost surely, 2^{61335877171552} is an apocalyptic number.

It is an amenable number.

61335877171552 is a deficient number, since it is larger than the sum of its proper divisors (59419131010004).

61335877171552 is a wasteful number, since it uses less digits than its factorization.

61335877171552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916746161621 (or 1916746161613 counting only the distinct ones).

The product of its digits is 37044000, while the sum is 61.

The spelling of 61335877171552 in words is "sixty-one trillion, three hundred thirty-five billion, eight hundred seventy-seven million, one hundred seventy-one thousand, five hundred fifty-two".