61077705980716 has 24 divisors (see below), whose sum is σ = 106919451132480. Its totient is φ = 30529291976832.

The previous prime is 61077705980671. The next prime is 61077705980719. The reversal of 61077705980716 is 61708950777016.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61077705980719) 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, 562163950 + ... + 562272586.

It is an arithmetic number, because the mean of its divisors is an integer number (4454977130520).

Almost surely, 2^{61077705980716} is an apocalyptic number.

It is an amenable number.

61077705980716 is a deficient number, since it is larger than the sum of its proper divisors (45841745151764).

61077705980716 is a wasteful number, since it uses less digits than its factorization.

61077705980716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151353 (or 151351 counting only the distinct ones).

The product of its (nonzero) digits is 31116960, while the sum is 64.

The spelling of 61077705980716 in words is "sixty-one trillion, seventy-seven billion, seven hundred five million, nine hundred eighty thousand, seven hundred sixteen".