10120554045 has 64 divisors (see below), whose sum is σ = 20575088640. Its totient is φ = 4623683904.

The previous prime is 10120554043. The next prime is 10120554077. The reversal of 10120554045 is 54045502101.

10120554045 is a `hidden beast` number, since 101 + 2 + 0 + 554 + 0 + 4 + 5 = 666.

It is not a de Polignac number, because 10120554045 - 2¹ = 10120554043 is a prime.

It is a super-2 number, since 2×10120554045² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120554043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2684752 + ... + 2688518.

It is an arithmetic number, because the mean of its divisors is an integer number (321485760).

Almost surely, 2^10120554045 is an apocalyptic number.

10120554045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10120554045 is an abundant number, since it is smaller than the sum of its proper divisors (10454534595).

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

10120554045 is a wasteful number, since it uses less digits than its factorization.

10120554045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631 (or 6625 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 10120554045 in words is "ten billion, one hundred twenty million, five hundred fifty-four thousand, forty-five".