61153215077445 has 16 divisors (see below), whose sum is σ = 98111752154880. Its totient is φ = 32526178697664.

The previous prime is 61153215077443. The next prime is 61153215077467. The reversal of 61153215077445 is 54477051235116.

It is not a de Polignac number, because 61153215077445 - 2¹ = 61153215077443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61153215077443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5554328290 + ... + 5554339299.

It is an arithmetic number, because the mean of its divisors is an integer number (6131984509680).

Almost surely, 2^{61153215077445} is an apocalyptic number.

It is an amenable number.

61153215077445 is a deficient number, since it is larger than the sum of its proper divisors (36958537077435).

61153215077445 is a wasteful number, since it uses less digits than its factorization.

61153215077445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11108667964.

The product of its (nonzero) digits is 3528000, while the sum is 51.

The spelling of 61153215077445 in words is "sixty-one trillion, one hundred fifty-three billion, two hundred fifteen million, seventy-seven thousand, four hundred forty-five".