623546450156455 has 48 divisors (see below), whose sum is σ = 871759528811136. Its totient is φ = 426917155392000.

The previous prime is 623546450156453. The next prime is 623546450156473. The reversal of 623546450156455 is 554651054645326.

It is not a de Polignac number, because 623546450156455 - 2¹ = 623546450156453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 623546450156393 and 623546450156402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623546450156453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 428491330 + ... + 429944080.

It is an arithmetic number, because the mean of its divisors is an integer number (18161656850232).

Almost surely, 2^{623546450156455} is an apocalyptic number.

623546450156455 is a deficient number, since it is larger than the sum of its proper divisors (248213078654681).

623546450156455 is a wasteful number, since it uses less digits than its factorization.

623546450156455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455464 (or 1455457 counting only the distinct ones).

The product of its (nonzero) digits is 259200000, while the sum is 61.

The spelling of 623546450156455 in words is "six hundred twenty-three trillion, five hundred forty-six billion, four hundred fifty million, one hundred fifty-six thousand, four hundred fifty-five".