61051133506 has 8 divisors (see below), whose sum is σ = 99901854864. Its totient is φ = 27750515220.

The previous prime is 61051133491. The next prime is 61051133531. The reversal of 61051133506 is 60533115016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387525740 + ... + 1387525783.

It is an arithmetic number, because the mean of its divisors is an integer number (12487731858).

Almost surely, 2^61051133506 is an apocalyptic number.

61051133506 is a deficient number, since it is larger than the sum of its proper divisors (38850721358).

61051133506 is a wasteful number, since it uses less digits than its factorization.

61051133506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775051536.

The product of its (nonzero) digits is 8100, while the sum is 31.

The spelling of 61051133506 in words is "sixty-one billion, fifty-one million, one hundred thirty-three thousand, five hundred six".