2151404406020 has 12 divisors (see below), whose sum is σ = 4517949252684. Its totient is φ = 860561762400.

The previous prime is 2151404405911. The next prime is 2151404406037. The reversal of 2151404406020 is 206044041512.

It can be written as a sum of positive squares in 2 ways, for example, as 1144929960196 + 1006474445824 = 1070014^2 + 1003232^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53785110131 + ... + 53785110170.

It is an arithmetic number, because the mean of its divisors is an integer number (376495771057).

Almost surely, 2^{2151404406020} is an apocalyptic number.

2151404406020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151404406020 is an abundant number, since it is smaller than the sum of its proper divisors (2366544846664).

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

2151404406020 is a wasteful number, since it uses less digits than its factorization.

2151404406020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107570220310 (or 107570220308 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 2151404406020 its reverse (206044041512), we get a palindrome (2357448447532).

The spelling of 2151404406020 in words is "two trillion, one hundred fifty-one billion, four hundred four million, four hundred six thousand, twenty".