20406036213210 has 64 divisors (see below), whose sum is σ = 49067114400000. Its totient is φ = 5431327229952.

The previous prime is 20406036213169. The next prime is 20406036213223. The reversal of 20406036213210 is 1231263060402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34138632 + ... + 34731228.

It is an arithmetic number, because the mean of its divisors is an integer number (766673662500).

Almost surely, 2^{20406036213210} is an apocalyptic number.

20406036213210 is an abundant number, since it is smaller than the sum of its proper divisors (28661078186790).

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

20406036213210 is a wasteful number, since it uses less digits than its factorization.

20406036213210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594775.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 20406036213210 its reverse (1231263060402), we get a palindrome (21637299273612).

The spelling of 20406036213210 in words is "twenty trillion, four hundred six billion, thirty-six million, two hundred thirteen thousand, two hundred ten".