202078119961 has 27 divisors (see below), whose sum is σ = 222072674013. Its totient is φ = 183840197760.

The previous prime is 202078119883. The next prime is 202078120003. The reversal of 202078119961 is 169911870202.

The square root of 202078119961 is 449531.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 12104180361 + 189973939600 = 110019^2 + 435860^2 .

It is not a de Polignac number, because 202078119961 - 2¹³ = 202078111769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202078819961) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 236902411 + ... + 236903263.

Almost surely, 2^202078119961 is an apocalyptic number.

202078119961 is the 449531-st square number.

202078119961 is the 224766-th centered octagonal number.

It is an amenable number.

202078119961 is a deficient number, since it is larger than the sum of its proper divisors (19994554052).

202078119961 is an frugal number, since it uses more digits than its factorization.

202078119961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 46.

The spelling of 202078119961 in words is "two hundred two billion, seventy-eight million, one hundred nineteen thousand, nine hundred sixty-one".