10120072155 has 8 divisors (see below), whose sum is σ = 16192115472. Its totient is φ = 5397371808.

The previous prime is 10120072147. The next prime is 10120072159. The reversal of 10120072155 is 55127002101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10120072155 - 2³ = 10120072147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10120072159) 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, 337335724 + ... + 337335753.

It is an arithmetic number, because the mean of its divisors is an integer number (2024014434).

Almost surely, 2^10120072155 is an apocalyptic number.

10120072155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10120072155 is a deficient number, since it is larger than the sum of its proper divisors (6072043317).

10120072155 is an equidigital number, since it uses as much as digits as its factorization.

10120072155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674671485.

The product of its (nonzero) digits is 700, while the sum is 24.

Adding to 10120072155 its reverse (55127002101), we get a palindrome (65247074256).

The spelling of 10120072155 in words is "ten billion, one hundred twenty million, seventy-two thousand, one hundred fifty-five".