2145522315404 has 18 divisors (see below), whose sum is σ = 4065701311980. Its totient is φ = 990241068336.

The previous prime is 2145522315389. The next prime is 2145522315407. The reversal of 2145522315404 is 4045132255412.

It is not an unprimeable number, because it can be changed into a prime (2145522315407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1586924114 + ... + 1586925465.

It is an arithmetic number, because the mean of its divisors is an integer number (225872295110).

Almost surely, 2^{2145522315404} is an apocalyptic number.

It is an amenable number.

2145522315404 is a deficient number, since it is larger than the sum of its proper divisors (1920178996576).

2145522315404 is a wasteful number, since it uses less digits than its factorization.

2145522315404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173849609 (or 3173849594 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 2145522315404 in words is "two trillion, one hundred forty-five billion, five hundred twenty-two million, three hundred fifteen thousand, four hundred four".