105400506520 has 64 divisors (see below), whose sum is σ = 252206488800. Its totient is φ = 39529451520.

The previous prime is 105400506511. The next prime is 105400506527. The reversal of 105400506520 is 25605004501.

It is a super-2 number, since 2×105400506520² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105400506527) 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, 641151 + ... + 788590.

Almost surely, 2^105400506520 is an apocalyptic number.

105400506520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105400506520 is an abundant number, since it is smaller than the sum of its proper divisors (146805982280).

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

105400506520 is a wasteful number, since it uses less digits than its factorization.

105400506520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429868 (or 1429864 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 105400506520 in words is "one hundred five billion, four hundred million, five hundred six thousand, five hundred twenty".