202899034998661 has 8 divisors (see below), whose sum is σ = 202923627867648. Its totient is φ = 202874442750000.

The previous prime is 202899034998629. The next prime is 202899034998763. The reversal of 202899034998661 is 166899430998202.

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 202899034998661 - 2⁵ = 202899034998629 is a prime.

It is a super-2 number, since 2×202899034998661² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202899034798661) 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, 1131206136 + ... + 1131385486.

It is an arithmetic number, because the mean of its divisors is an integer number (25365453483456).

Almost surely, 2^{202899034998661} is an apocalyptic number.

It is an amenable number.

202899034998661 is a deficient number, since it is larger than the sum of its proper divisors (24592868987).

202899034998661 is a wasteful number, since it uses less digits than its factorization.

202899034998661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310163.

The product of its (nonzero) digits is 725594112, while the sum is 76.

The spelling of 202899034998661 in words is "two hundred two trillion, eight hundred ninety-nine billion, thirty-four million, nine hundred ninety-eight thousand, six hundred sixty-one".