126554645323620 has 48 divisors (see below), whose sum is σ = 393725563230720. Its totient is φ = 33747905419488.

The previous prime is 126554645323619. The next prime is 126554645323627. The reversal of 126554645323620 is 26323546455621.

126554645323620 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 5 + 4 + 6 + 4 + 5 + 3 + 2 + 3 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (126554645323627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117180226612 + ... + 117180227691.

It is an arithmetic number, because the mean of its divisors is an integer number (8202615900640).

Almost surely, 2^{126554645323620} is an apocalyptic number.

126554645323620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126554645323620 is an abundant number, since it is smaller than the sum of its proper divisors (267170917907100).

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

126554645323620 is a wasteful number, since it uses less digits than its factorization.

126554645323620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234360454321 (or 234360454313 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 54.

The spelling of 126554645323620 in words is "one hundred twenty-six trillion, five hundred fifty-four billion, six hundred forty-five million, three hundred twenty-three thousand, six hundred twenty".