208090890151 has 4 divisors (see below), whose sum is σ = 208092886704. Its totient is φ = 208088893600.

The previous prime is 208090890089. The next prime is 208090890167. The reversal of 208090890151 is 151098090802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 208090890151 - 2¹⁵ = 208090857383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 208090890098 and 208090890107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208096890151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832795 + ... + 1053436.

It is an arithmetic number, because the mean of its divisors is an integer number (52023221676).

Almost surely, 2^208090890151 is an apocalyptic number.

208090890151 is a deficient number, since it is larger than the sum of its proper divisors (1996553).

208090890151 is a wasteful number, since it uses less digits than its factorization.

208090890151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996552.

The product of its (nonzero) digits is 51840, while the sum is 43.

The spelling of 208090890151 in words is "two hundred eight billion, ninety million, eight hundred ninety thousand, one hundred fifty-one".