61541142144507 has 24 divisors (see below), whose sum is σ = 94248424973664. Its totient is φ = 38562079444224.

The previous prime is 61541142144497. The next prime is 61541142144617. The reversal of 61541142144507 is 70544124114516.

61541142144507 is a `hidden beast` number, since 6 + 1 + 5 + 4 + 114 + 21 + 4 + 4 + 507 = 666.

It is not a de Polignac number, because 61541142144507 - 2⁷ = 61541142144379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61541142142507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270565788 + ... + 270793145.

It is an arithmetic number, because the mean of its divisors is an integer number (3927017707236).

Almost surely, 2^{61541142144507} is an apocalyptic number.

61541142144507 is a deficient number, since it is larger than the sum of its proper divisors (32707282829157).

61541142144507 is a wasteful number, since it uses less digits than its factorization.

61541142144507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541359699 (or 541359696 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 61541142144507 in words is "sixty-one trillion, five hundred forty-one billion, one hundred forty-two million, one hundred forty-four thousand, five hundred seven".