10506620420 has 24 divisors (see below), whose sum is σ = 22224959064. Its totient is φ = 4171970816.

The previous prime is 10506620389. The next prime is 10506620431. The reversal of 10506620420 is 2402660501.

It can be written as a sum of positive squares in 4 ways, for example, as 266799556 + 10239820864 = 16334^2 + 101192^2 .

It is a super-2 number, since 2×10506620420² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10506620420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914527 + ... + 1920006.

It is an arithmetic number, because the mean of its divisors is an integer number (926039961).

Almost surely, 2^10506620420 is an apocalyptic number.

10506620420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10506620420 is an abundant number, since it is smaller than the sum of its proper divisors (11718338644).

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

10506620420 is a wasteful number, since it uses less digits than its factorization.

10506620420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834679 (or 3834677 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 10506620420 in words is "ten billion, five hundred six million, six hundred twenty thousand, four hundred twenty".