61025153145 has 64 divisors (see below), whose sum is σ = 107683430400. Its totient is φ = 29264567040.

The previous prime is 61025153107. The next prime is 61025153149. The reversal of 61025153145 is 54135152016.

It is not a de Polignac number, because 61025153145 - 2⁹ = 61025152633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (61025153149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18165976 + ... + 18169334.

It is an arithmetic number, because the mean of its divisors is an integer number (1682553600).

Almost surely, 2^61025153145 is an apocalyptic number.

It is an amenable number.

61025153145 is a deficient number, since it is larger than the sum of its proper divisors (46658277255).

61025153145 is a wasteful number, since it uses less digits than its factorization.

61025153145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 61025153145 in words is "sixty-one billion, twenty-five million, one hundred fifty-three thousand, one hundred forty-five".