37061021161 has 2 divisors, whose sum is σ = 37061021162. Its totient is φ = 37061021160.

The previous prime is 37061021149. The next prime is 37061021183. The reversal of 37061021161 is 16112016073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29302934761 + 7758086400 = 171181^2 + 88080^2 .

It is an emirp because it is prime and its reverse (16112016073) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37061021161 - 2²¹ = 37058924009 is a prime.

It is not a weakly prime, because it can be changed into another prime (37061021111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18530510580 + 18530510581.

It is an arithmetic number, because the mean of its divisors is an integer number (18530510581).

Almost surely, 2^37061021161 is an apocalyptic number.

It is an amenable number.

37061021161 is a deficient number, since it is larger than the sum of its proper divisors (1).

37061021161 is an equidigital number, since it uses as much as digits as its factorization.

37061021161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 37061021161 in words is "thirty-seven billion, sixty-one million, twenty-one thousand, one hundred sixty-one".