66523045837150 has 96 divisors (see below), whose sum is σ = 144561625588800. Its totient is φ = 22765739472000.

The previous prime is 66523045837139. The next prime is 66523045837153. The reversal of 66523045837150 is 5173854032566.

It is a junction number, because it is equal to n+sod(n) for n = 66523045837091 and 66523045837100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66523045837153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5693220 + ... + 12863080.

It is an arithmetic number, because the mean of its divisors is an integer number (1505850266550).

Almost surely, 2^{66523045837150} is an apocalyptic number.

66523045837150 is an abundant number, since it is smaller than the sum of its proper divisors (78038579751650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66523045837150 is a wasteful number, since it uses less digits than its factorization.

66523045837150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7170435 (or 7170416 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 55.

The spelling of 66523045837150 in words is "sixty-six trillion, five hundred twenty-three billion, forty-five million, eight hundred thirty-seven thousand, one hundred fifty".