2145908571599 has 8 divisors (see below), whose sum is σ = 2311031864400. Its totient is φ = 1980792907776.

The previous prime is 2145908571589. The next prime is 2145908571637. The reversal of 2145908571599 is 9951758095412.

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

It is a cyclic number.

It is not a de Polignac number, because 2145908571599 - 2³² = 2141613604303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145908571529) 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, 1316249 + ... + 2454450.

It is an arithmetic number, because the mean of its divisors is an integer number (288878983050).

Almost surely, 2^{2145908571599} is an apocalyptic number.

2145908571599 is a deficient number, since it is larger than the sum of its proper divisors (165123292801).

2145908571599 is a wasteful number, since it uses less digits than its factorization.

2145908571599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814489.

The product of its (nonzero) digits is 40824000, while the sum is 65.

Adding to 2145908571599 its sum of digits (65), we get a square (2145908571664 = 1464892²).

The spelling of 2145908571599 in words is "two trillion, one hundred forty-five billion, nine hundred eight million, five hundred seventy-one thousand, five hundred ninety-nine".