20100100074 has 16 divisors (see below), whose sum is σ = 40212308640. Its totient is φ = 6698015280.

The previous prime is 20100100073. The next prime is 20100100087. The reversal of 20100100074 is 47000100102.

It is not an unprimeable number, because it can be changed into a prime (20100100073) 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, 482869 + ... + 522840.

It is an arithmetic number, because the mean of its divisors is an integer number (2513269290).

Almost surely, 2^20100100074 is an apocalyptic number.

20100100074 is an abundant number, since it is smaller than the sum of its proper divisors (20112208566).

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

20100100074 is a wasteful number, since it uses less digits than its factorization.

20100100074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009045.

The product of its (nonzero) digits is 56, while the sum is 15.

Adding to 20100100074 its reverse (47000100102), we get a palindrome (67100200176).

The spelling of 20100100074 in words is "twenty billion, one hundred million, one hundred thousand, seventy-four".