61040242310356 has 72 divisors (see below), whose sum is σ = 114220852462080. Its totient is φ = 28535452632000.

The previous prime is 61040242310347. The next prime is 61040242310371. The reversal of 61040242310356 is 65301324204016.

It is a super-2 number, since 2×61040242310356² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44684605 + ... + 46030363.

It is an arithmetic number, because the mean of its divisors is an integer number (1586400728640).

Almost surely, 2^{61040242310356} is an apocalyptic number.

It is an amenable number.

61040242310356 is a deficient number, since it is larger than the sum of its proper divisors (53180610151724).

61040242310356 is a wasteful number, since it uses less digits than its factorization.

61040242310356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346213 (or 1346192 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 61040242310356 in words is "sixty-one trillion, forty billion, two hundred forty-two million, three hundred ten thousand, three hundred fifty-six".