55743645246621 has 8 divisors (see below), whose sum is σ = 74360269989600. Its totient is φ = 37144725334032.

The previous prime is 55743645246617. The next prime is 55743645246623. The reversal of 55743645246621 is 12664254634755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55743645246621 - 2² = 55743645246617 is a prime.

It is a super-2 number, since 2×55743645246621² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55743645246623) 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, 4426200250 + ... + 4426212843.

It is an arithmetic number, because the mean of its divisors is an integer number (9295033748700).

Almost surely, 2^{55743645246621} is an apocalyptic number.

It is an amenable number.

55743645246621 is a deficient number, since it is larger than the sum of its proper divisors (18616624742979).

55743645246621 is a wasteful number, since it uses less digits than its factorization.

55743645246621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8852415195.

The product of its digits is 145152000, while the sum is 60.

The spelling of 55743645246621 in words is "fifty-five trillion, seven hundred forty-three billion, six hundred forty-five million, two hundred forty-six thousand, six hundred twenty-one".