10661433531620 has 24 divisors (see below), whose sum is σ = 22399516845888. Its totient is φ = 4262572188000.

The previous prime is 10661433531611. The next prime is 10661433531629. The reversal of 10661433531620 is 2613533416601.

It is an interprime number because it is at equal distance from previous prime (10661433531611) and next prime (10661433531629).

It is a super-2 number, since 2×10661433531620² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10661433531629) 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, 125032856 + ... + 125118095.

It is an arithmetic number, because the mean of its divisors is an integer number (933313201912).

Almost surely, 2^{10661433531620} is an apocalyptic number.

10661433531620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10661433531620 is an abundant number, since it is smaller than the sum of its proper divisors (11738083314268).

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

10661433531620 is a wasteful number, since it uses less digits than its factorization.

10661433531620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250153091 (or 250153089 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 10661433531620 in words is "ten trillion, six hundred sixty-one billion, four hundred thirty-three million, five hundred thirty-one thousand, six hundred twenty".