172241065257548 has 24 divisors (see below), whose sum is σ = 344482830156192. Its totient is φ = 73817449473024.

The previous prime is 172241065257529. The next prime is 172241065257601. The reversal of 172241065257548 is 845752560142271.

It is a happy number.

It is a super-2 number, since 2×172241065257548² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8387186 + ... + 20367302.

It is an arithmetic number, because the mean of its divisors is an integer number (14353451256508).

Almost surely, 2^{172241065257548} is an apocalyptic number.

It is an amenable number.

172241065257548 is an abundant number, since it is smaller than the sum of its proper divisors (172241764898644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172241065257548 is a wasteful number, since it uses less digits than its factorization.

172241065257548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12493601 (or 12493599 counting only the distinct ones).

The product of its (nonzero) digits is 37632000, while the sum is 59.

The spelling of 172241065257548 in words is "one hundred seventy-two trillion, two hundred forty-one billion, sixty-five million, two hundred fifty-seven thousand, five hundred forty-eight".