37541707661 has 4 divisors (see below), whose sum is σ = 37542786012. Its totient is φ = 37540629312.

The previous prime is 37541707607. The next prime is 37541707663. The reversal of 37541707661 is 16670714573.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16670714573 = 17 ⋅980630269.

It can be written as a sum of positive squares in 2 ways, for example, as 22899255625 + 14642452036 = 151325^2 + 121006^2 .

It is a cyclic number.

It is not a de Polignac number, because 37541707661 - 2¹⁰ = 37541706637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37541707663) 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, 485150 + ... + 557183.

It is an arithmetic number, because the mean of its divisors is an integer number (9385696503).

Almost surely, 2^37541707661 is an apocalyptic number.

It is an amenable number.

37541707661 is a deficient number, since it is larger than the sum of its proper divisors (1078351).

37541707661 is a wasteful number, since it uses less digits than its factorization.

37541707661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078350.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 37541707661 in words is "thirty-seven billion, five hundred forty-one million, seven hundred seven thousand, six hundred sixty-one".