6461161526140 has 12 divisors (see below), whose sum is σ = 13568439204936. Its totient is φ = 2584464610448.

The previous prime is 6461161526087. The next prime is 6461161526161. The reversal of 6461161526140 is 416251611646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161529038134 + ... + 161529038173.

It is an arithmetic number, because the mean of its divisors is an integer number (1130703267078).

Almost surely, 2^{6461161526140} is an apocalyptic number.

It is an amenable number.

6461161526140 is an abundant number, since it is smaller than the sum of its proper divisors (7107277678796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6461161526140 is a wasteful number, since it uses less digits than its factorization.

6461161526140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323058076316 (or 323058076314 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 6461161526140 in words is "six trillion, four hundred sixty-one billion, one hundred sixty-one million, five hundred twenty-six thousand, one hundred forty".