202840154494 has 16 divisors (see below), whose sum is σ = 314768578320. Its totient is φ = 97917664320.

The previous prime is 202840154483. The next prime is 202840154501. The reversal of 202840154494 is 494451048202.

It is a super-2 number, since 2×202840154494² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202840154494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1161529 + ... + 1324699.

It is an arithmetic number, because the mean of its divisors is an integer number (19673036145).

Almost surely, 2^202840154494 is an apocalyptic number.

202840154494 is a deficient number, since it is larger than the sum of its proper divisors (111928423826).

202840154494 is a wasteful number, since it uses less digits than its factorization.

202840154494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184635.

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 202840154494 in words is "two hundred two billion, eight hundred forty million, one hundred fifty-four thousand, four hundred ninety-four".