148077551621771 has 16 divisors (see below), whose sum is σ = 152486669131776. Its totient is φ = 143706441480000.

The previous prime is 148077551621759. The next prime is 148077551621773. The reversal of 148077551621771 is 177126155770841.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148077551621771 is a prime.

It is a super-2 number, since 2×148077551621771² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148077551621773) 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, 418084526 + ... + 418438556.

It is an arithmetic number, because the mean of its divisors is an integer number (9530416820736).

Almost surely, 2^{148077551621771} is an apocalyptic number.

148077551621771 is a deficient number, since it is larger than the sum of its proper divisors (4409117510005).

148077551621771 is a wasteful number, since it uses less digits than its factorization.

148077551621771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407674.

The product of its (nonzero) digits is 23049600, while the sum is 62.

The spelling of 148077551621771 in words is "one hundred forty-eight trillion, seventy-seven billion, five hundred fifty-one million, six hundred twenty-one thousand, seven hundred seventy-one".