361971156097 has 4 divisors (see below), whose sum is σ = 362020606276. Its totient is φ = 361921705920.

The previous prime is 361971156061. The next prime is 361971156121. The reversal of 361971156097 is 790651179163.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10160841601 + 351810314496 = 100801^2 + 593136^2 .

It is a cyclic number.

It is not a de Polignac number, because 361971156097 - 2⁷ = 361971155969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361971156007) 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, 24714108 + ... + 24728749.

It is an arithmetic number, because the mean of its divisors is an integer number (90505151569).

Almost surely, 2^361971156097 is an apocalyptic number.

It is an amenable number.

361971156097 is a deficient number, since it is larger than the sum of its proper divisors (49450179).

361971156097 is an equidigital number, since it uses as much as digits as its factorization.

361971156097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49450178.

The product of its (nonzero) digits is 2143260, while the sum is 55.

The spelling of 361971156097 in words is "three hundred sixty-one billion, nine hundred seventy-one million, one hundred fifty-six thousand, ninety-seven".