10216100720 has 40 divisors (see below), whose sum is σ = 27145640544. Its totient is φ = 3502662912.

The previous prime is 10216100689. The next prime is 10216100759. The reversal of 10216100720 is 2700161201.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 10216100692 and 10216100701.

It is a congruent number.

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, 9120959 + ... + 9122078.

Almost surely, 2^10216100720 is an apocalyptic number.

10216100720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10216100720 is an abundant number, since it is smaller than the sum of its proper divisors (16929539824).

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

10216100720 is a wasteful number, since it uses less digits than its factorization.

10216100720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18243057 (or 18243051 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 10216100720 its reverse (2700161201), we get a palindrome (12916261921).

The spelling of 10216100720 in words is "ten billion, two hundred sixteen million, one hundred thousand, seven hundred twenty".