61056965390 has 16 divisors (see below), whose sum is σ = 112240890432. Its totient is φ = 23903152224.

The previous prime is 61056965363. The next prime is 61056965393. The reversal of 61056965390 is 9356965016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61056965393) 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, 64953749 + ... + 64954688.

It is an arithmetic number, because the mean of its divisors is an integer number (7015055652).

Almost surely, 2^61056965390 is an apocalyptic number.

61056965390 is a deficient number, since it is larger than the sum of its proper divisors (51183925042).

61056965390 is a wasteful number, since it uses less digits than its factorization.

61056965390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129908491.

The product of its (nonzero) digits is 1312200, while the sum is 50.

The spelling of 61056965390 in words is "sixty-one billion, fifty-six million, nine hundred sixty-five thousand, three hundred ninety".