549941920654 has 8 divisors (see below), whose sum is σ = 942757578288. Its totient is φ = 235689394560.

The previous prime is 549941920651. The next prime is 549941920679. The reversal of 549941920654 is 456029149945.

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

It is a super-2 number, since 2×549941920654² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549941920651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19640782867 + ... + 19640782894.

It is an arithmetic number, because the mean of its divisors is an integer number (117844697286).

Almost surely, 2^549941920654 is an apocalyptic number.

549941920654 is a deficient number, since it is larger than the sum of its proper divisors (392815657634).

549941920654 is a wasteful number, since it uses less digits than its factorization.

549941920654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39281565770.

The product of its (nonzero) digits is 13996800, while the sum is 58.

The spelling of 549941920654 in words is "five hundred forty-nine billion, nine hundred forty-one million, nine hundred twenty thousand, six hundred fifty-four".