10105155020 has 24 divisors (see below), whose sum is σ = 21339385200. Its totient is φ = 4019479232.

The previous prime is 10105155001. The next prime is 10105155029. The reversal of 10105155020 is 2055150101.

It is a happy number.

It is a super-2 number, since 2×10105155020² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10105154983 and 10105155001.

It is not an unprimeable number, because it can be changed into a prime (10105155029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407755 + ... + 1414914.

It is an arithmetic number, because the mean of its divisors is an integer number (889141050).

Almost surely, 2^10105155020 is an apocalyptic number.

10105155020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10105155020 is an abundant number, since it is smaller than the sum of its proper divisors (11234230180).

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

10105155020 is a wasteful number, since it uses less digits than its factorization.

10105155020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822857 (or 2822855 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 20.

The spelling of 10105155020 in words is "ten billion, one hundred five million, one hundred fifty-five thousand, twenty".